The provided chart depicts how people in two age groups participating in the marathon changes between 2008 and 2012.
Overall, the number of the two age groups joining the marathon increased over the period. Noticeably, the 18-39 age group participated more than that at 40+.
Regarding the first three years, starting the year had the fewest participants, with 2000 people was recorded in 2008, including 1200 people at aged 18-39 and 800 people at aged 40+. After that, this figure increased slightly over 200 people in 2009, with a total of 2000 people across the 18-39 and 40+ age groups, at 1350 people and 850 people, respectively. By 2010, there was an increase of 200 in the number of participants, of whom 1500 were young adults, and 900 were people aged 40 and over.
As the remaining years, in 2010, with 2400 total people who joined the marathon including 1500 of the age group 18-39 and 900 of over 40+. By the following next year, the quantity of people aged 40 and over grew a half of 100, reaching 950 participants, and those of aged 18-39 also climbed moderately to 1600 people, with a total of 2550 people. Finally, this figure reached the highest point of 2800 people in 2012, including 1750 people aged 18-39 and 1050 people aged 40+.
